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| Item | Standard | Result |
|---|---|---|
| Appearance | White crystal | White crystal |
| Assay ((NH4)2HPO4) % | ≥96.0-102.0 | 99.2 |
| P2O5% | ≥53.0 | 53.43 |
| Heavy Metal(AS Pb)% | ≤0.001 | 0.0006 |
| H2O% | ≤0.2 | 0.13 |
| Water Insoluble% | ≤0.1 | 0.01 |
| PH | 7.8-8.2 | 7.96 |
Diammonium Hydrogen Phosphate (DAP), with the CAS number 7783-28-0, is a significant inorganic compound extensively used in various industrial sectors. Its chemical formula is (NH4)2HPO4, and it has a molecular weight of 132.06 g/mol. DAP is commonly recognized for its role as a high-nutrient fertilizer but its applications extend far beyond agriculture.









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